1. How many ATOMS of phosphorus, are present in 4.10 moles of tetraphosphorus decaoxide, P4O10? __________ atoms of phosphorus 2. How many MOLES of oxygen are present in 1.75×1021 molecules of tetraphosphorus decaoxide? ___________ moles of oxygen 3. How many ATOMS of phosphorus are present in 7.95 grams of tetraphosphorus decaoxide, P4O10? ________atoms of phosphorus 4.How many GRAMS of oxygen are present in 1.75×1021 molecules of tetraphosphorus decaoxide? _________grams of oxygen
how many moles of THC does this 23 μg represent? how many molecules?
2) (4pts) Answer the following questions about sodium phosphate (NasPO.) How many oxygen atoms are in one molecule of sodium phosphate? many oxygen atoms do you have? If you have one dozen molecules of sodium phosphate, how many oxygen atoms do you h If you have one mole of sodium phosphate molecules, how many oxygen atoms do you have? (16 pts) Perform the following conversions: 3) a) 2.89 × 103 helium atoms into moles of helium atoms: b) 0.500 moles...
How many atoms of oxygen are present in 1.30 moles of SO3?
1. How many ATOMS of carbon are present in 4.23 moles of carbon dioxide ? ____atoms of carbon. 2. How many MOLES of oxygen are present in 3.29×1022 molecules of carbon dioxide ? _____moles of oxygen. 3. How many MOLECULES of carbon tetrabromide are present in 2.73 moles of this compound ? ____molecules. 4. 2. How many MOLES of carbon tetrabromide are present in 9.20×1022 molecules of this compound ? _____moles.
5. How many molecules are in 7.47 moles of NH3? How many total atoms are there? CHEM& 121 130 Belle
1. How many ATOMS of carbon are present in 4.55 moles of carbon monoxide ? 2. How many MOLES of oxygen are present in 7.46x10" molecules of carbon monoxide ?
How many moles of oxygen atoms are contained in 1.25 mol of H3PO4?
10) How many molecules and atoms are in 3 moles of N,H?
two molecules of sucrose (C12H22O11) contains how many oxygen atoms?